docs: def add_device_callback(self, devices, callback):
          """Register a device callback."""
          if not devices:
              return False
  
          if not isinstance(devices, (tuple, list)):
              devices = [devices]
  
          for device in devices:
              # Device may be a device_id
              device_id = device
  
              # If they gave us an actual device, get that devices ID
              if isinstance(device, AbodeDevice):
                  device_id = device.device_id
  
              # Validate the device is valid
              if not self._abode.get_device(device_id):
                  raise AbodeException((ERROR.EVENT_DEVICE_INVALID))
  
              _LOGGER.debug(
                  "Subscribing to updated for device_id: %s", device_id)
  
              self._device_callbacks[device_id].append((callback))
  
          return True